JWT Decoder
Use this free JWT Decoder to decode JSON Web Tokens instantly. Paste your JWT token below to view the header, payload, claims, and token expiry information in a readable format.
Decode JSON Web Token
Paste your JWT token to decode the header and payload. This tool does not verify signature validity.
Decoded Result
Header
Payload
How to Use This JWT Decoder
- Paste your JSON Web Token into the input box.
- Click Decode JWT.
- Review the decoded header, payload, claims, issued time, and expiry time if available.
- Use the copy button to copy the decoded result.
Why Use This JWT Decoder?
Fast
Decode JWT header and payload instantly without installing any software.
Useful
Helpful for developers, API testers, authentication debugging, and token inspection.
Private
This tool runs in your browser and does not need to upload your token to a server.
What Is a JWT?
JWT stands for JSON Web Token. It is a compact token format commonly used for authentication, authorization, and secure information exchange between systems. A JWT usually contains three parts: header, payload, and signature.
This JWT Decoder reads the header and payload sections and displays them in a readable JSON format. It does not validate the token signature or confirm whether the token is trusted.
Frequently Asked Questions
Does this JWT Decoder verify the signature?
No. This tool decodes the token header and payload only. It does not verify the cryptographic signature.
Is JWT data encrypted?
Usually, JWT payload data is encoded, not encrypted. Anyone with the token can decode and read the payload unless encryption is separately used.
What are common JWT claims?
Common claims include issuer, subject, audience, issued at time, expiry time, not before time, and token ID.
Can I use this JWT Decoder on mobile?
Yes. This free JWT Decoder works on mobile, tablet, and desktop devices.
